Perforating-machine.



N0. 888,i 47.' PAT-ENTED DEC. 11, 1906.

' S. D. STURGIS.

I PERPORATING MAGHINE.

APPLICATION FILED JAN. 10. 1906. x

. g- M J citizen of the United forator and UNITED STATES PATENT OFFICESAMUEL n STURGIS, or LOS ANGELES, CALIFORNIA, ASSIGNOR .oroNE- HALF TOJOSEPH Y. BARUH, or LOS ANeELEsoALwoRNIA- PERFORMING-MACHINSpecification df Letters Patent;

Patented Dec. 11, i906.

Application filed January 10, 1906. Serial No. 295476.

To all lo/ om it may concern:

Beit known that I, SAMUEL D. STUR'GIS, a States, residing at LosAngeles, in the county of Los Angeles and State of California, haveinvented new and useful Improvementsin Perforating- Machines, of whichthe following is a specifieation.

My invention relates more particularly to perforating-machines used byprinters in whichlarge quantities of, paper are perforated. I

The objects of my invention are to provide a simple and easilypperateddevice which will automatically fee the paper to the per remo ve ittherefrom without employing additional means therefor and which. willhold the p Jtper to be perforated on either side of the perfiiratin-knife tightly against, the drum on which t .e-pap'eris fed to theknives, and thereby prevent it from slipping when the some is-beingperforated, and thereby prevent the grooves in the drum from becomingfilled with paper.

I accomplish these objects by the means described herein and shown inthe accompanying drawings, in which- V Figure l is a s 'le elevation ofmy improved perforating-macnine, partly in section. Fi s. 2 and 3 areend views of 1ny,1nacl1.ine,,.t ie' driving-pulleys being g reincvedtherefrom. Fig. 4 1s an enlarged fragmentary detail,- partly inelevation and partly in section. Fig. .Sis a side elevation of theperforating or cutting disk, partly shown with one of the annular rubberdisks and holding-ring partlybroken away. Fig. 6 isan'edge view of theperforating-disk with the annular rubber rings on either side thereof..Fig. 7 is a per spective view of the cutter-holding key.

.In the drawings I have not shown the usual table or platform.n-pon'which the device ismonnted nor the surface on which the paper isfed to the perforator, as the same constitu tes no part of my invention.

In the drawings, A represents the frame of the device, in which thedevice is secured, which consists prineipallyof a hollow. drum B,carrying on the periphery thereof a pluralityof annular grooves B"forthe rece tion of the cutting ed e of the perforatingrnife C; Thiscutting nife'or dlsk is, adjustably shaft of whic 1 "band is first ;on.The comp n set or shoulder on the securru ber ring mounted on thecounter-shaft D, to which 'motiori is imparted through the spur-gears E1 and F, mounted, respectively, on the coimterand the projecting endwhich projects through the grooved drum B and to which the drum is keyedby the Set.- screw H. On the shaft is keyed the driving-pulley I, andad;

J, bynieans ofwhich motion is thrown onto or removed from the machine. 7These shafts are revolubly mounted in the bearing-blocks K and areadjustable therein by the thumbnuts L. Coiled springs M (shown in Fig.2) will hold the drum andcountenshaft firmly in their beari s theproperly adjusted dis tance a art. l he counter shaft has-a tudinaley-seat for the reception ofs .bar N This bar has recessesNf in t wardlyrejecting edge thereof, the urpose is to receive the downwar ly- 1'07acingeys, one for each cutting-disk, are placedin 1position within theannular ring P and are eld down into engagement with the s acing-bar Nby means of the set-screw 4, and afford means to operly adjust the diskson the counter-shaft. Any number of the counter-she t. They are put inplace on theannularring'P-byaneans of the annular securing-ring S, whichis internally screwthreaded and adapted for screw-threaded engagement onthe screw threaded hub Pon the annular ring P. In assembling to etherthe annular ring with the rubber ban s and the'cutting-dislr (shown inFig. 4) a rubber placed on the ring P, an annular shoulder being placedon the ring therefor, after'which the cutting-disk is placed there-'anion rubber ring is, then placed on an of in -ring' S, when'thesecuring-ring with the in place thereon is screwed onto the hub o theannular ring 1 and will se curelly hold the rubber bands and the 'cut-t1ngnife inplace on the hub on the annular ring P. The securing-ringhas indentations S there n, forming sockets fora spannerecting lug O onthe adjusting-key O. T esev of the shaft G,

projecting end ofl, this. 2

e ent- So; these perforatin -knives maybe placed upon wrench, by whichthe same may be tightly I screwed on the annular ring 'Pl In Figs. 5and, 6 I have shown thepe'rforating-knife in enlar ed detail, on eachside of in their normal position extend outward y i63 which is placed-aru ber ringR, which rings and beyond the cutting edges of the. perfo- 1odoWnW erdly edges innnediatelyabove the grooved drun'i,

at which point the edges of the knife project beyond the edges of therubber bands and into the grooves B of the drum n'd perforate the paper.These grooves are -'u'st 'Wideenough' to pern'iit'the entrance thereintoof the cutting edges. that or I 5 tionof the rubber bands on both sides0 the cutting'edges will contact with the grooved drum and will bepressed baclnvardly by the drum, permitting tliecutting edges to enterinto thegroove and prevent any of the paper 'f-romentering therein. Whenthe paper to be perforated is-inserted between the grooved drum and thecoi'inter-shalt, will -lirst he get ed by the oiItWa-rdly-prO ectmq'edges 'bf'iil e annular rubber bands and Will, wlihn 2 5 motion isimparted to the machine, be drawn 'therebetween and'will be held intight i'ric- "tionpal contact between the rubber bands and the drum,-and the cutting edges of the knife WilLPeiforrtethe same. As it passesout from under the counter-shaft the resiliency 'of the rubber "bandsthereon will remove the w. paper from the cuttlng edges of the knife andcause the perforated sheet to move Freely away from the OOUI'ltCT-Sllitit without anv Q 5' other device to accomplish this end.

perforating-1naehine will work satisi'ac toril with a, resilientsubstance on one side oft el claim as new, and desire to secure byLetters 4 5 'Paten is perforating disk orknife with some Hkin'd of paer; but to adapt the machine for r 40 use With a l l l i l l i i I I i lI 1 l l l ,iorating the paper l. A perforating-machine comprising arevoluliile drum having circmnlorcnlial grooves therein and acouruer-shai't having perl'orators thereon and rubber rings in contactwith the perlfi'irators and projecting be- 'yond the periphery thereof,and adapted to engage the solid portions or the drum on. each. side of agroove advance of the per- 1', ')rators, \i'herehy pressure upon therubber rings is nocessar in order to permithhe perforating means toaccomplish its Work of perhel d taut across the groove by the rubber riv2. A pertorar. r; machine comprising a revoluble drum havingeiriamrlerential grom'es therein and a counter-sha'l t, perloratorscarried by the counter-shalt and the countershah provided with meanscorresponding to the several grmives ol the drum hereby Io g the:uljustnwut of the perl oralors so that they always occupy a plane inalh'iement with a groove in the drum.

3. In a perlorating-maelline ol' the charactcr herein described providedwith a rotating drum having annular grooves thereon a counter-shaft forcarrying the cutting-disks having a longitudinal key-seat therein, a,spacing-bar in said seat and having spacingreccsses therein incombination with a key having a lug adapted for adjustable engagement onthe s ')a( -.ing-bar.

4-. The combination in a perforating-n1achineoi arotarydrum havingannular grooves thereon, a countor-shalt workably connected therr-swithcarrying perl'orz'itirig-knives thereon and having means to adjust theknives in line with the groo\"es on the annular drum.

in witness that I. claim the foregoing l have hereunto subscribed myname this 3d day 01 January, 1906.

SAM ll Eli l). S'IU RG18.

W itnesses:

llENKY 'l .llAzAun. -(i. E. lilAR'Pl-lAM.

